<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .left{
      width: 400px;
      height: 50px;
      background: #ea6e6e;
      float: left;
    }
    .right{
      width: 300px;
      height: 50px;
      background: #ded178;
      float: right;
    }

    .search{
      text-align: center;
    }
    img{
      display: block;
      width: 300px;
      margin: 0 auto;
    }
  </style>
</head>
<body>
  <div class="page">

    <div class="head">
      <div class="left"></div>
      <div class="right"></div>
    </div>

    <div class="search">
      <img src="https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png" alt="">
      <input type="text">
    </div>

  </div>
</body>
</html>